Hydrographic Survey along and under Wharfs
Profiling Sonar Survey Elevations
Q&S used profiling sonar to survey elevations adjacent and underneath wharfs. The profiling sonar system utilized narrow beam high frequency sonar with a rotating transducer head, coupled with a DGPS, Compass and 2-axis tilt sensor, to collect a profile of the existing seabed at specific points. Upon completion, Q&S developed dredge volume estimates. Having accurate information underneath the wharfs was of particular importance since sediments underneath the wharf were thought to be contaminated and their volume had the potential to significantly affect the cost of dredging and disposal.
– Received letter of commendation